Imagine walking up to someone with a bottle of mineral water which is shown very freely on all sides. The label has been removed to show there is no place to hide! Borrow a coin and tell everyone to watch closely...

One... two... three... You visually slam the coin straight through the bottle! It is openly seen rattling around in the water! Sound impossible? Well get this... Now hand out the bottle of water to let people discover the impossible truth... The lid of the bottle is still factory sealed and has NEVER been opened! You let this sink in then walk away... Leaving them with an impossible souvenir of this astonishing experience...